Process and apparatus for separation of stable isotope compound

(19)

(11)

EP 0 908 226 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	24.07.2002 Bulletin 2002/30

(43)	Date of publication A2:
	14.04.1999 Bulletin 1999/15

(21)	Application number: 98119173.7

(22)	Date of filing: 10.10.1998

(51)	International Patent Classification (IPC)⁷: B01D 59/04, B01J 19/32

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

13.10.1997 JP 27922397

(71)	Applicant: Nippon Sanso Corporation
	Tokyo 105-0003 (JP)

(72)	Inventors:
	Hayashida, Shigeru c/oNippon Sanso Corporation Tokyo 105-0003 (JP) Kuwata, Katsuyoshi c/oNippon Sanso Corporation Tokyo 105-0003 (JP) Kawakami, Hiroshi c/oNippon Sanso Corporation Tokyo 105-0003 (JP) Maeda, Ushio Tokyo 168-0081 (JP)

(74)	Representative: Munk, Ludwig, Dipl.-Ing.
	Patentanwalt Prinzregentenstrasse 1 86150 Augsburg 86150 Augsburg (DE)

(54)	Process and apparatus for separation of stable isotope compound

(57) Stable isotope atoms present in the form of stable isotope compounds, for example, ¹³C present in the form of ¹³CO, are separated by distillation using a distillation column packed orderly with a formed packing, and preferably by distillation using a distillation column packed with a "promoting-fluid-dispersion type" structured packing.

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